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The Rosetta space probe discovered a large amount of organic material in the nucleus of comet 'Chury.' Researchers now advance the theory that this matter has its origin in interstellar space and predates the birth of the solar system.
The discovery of the largest timing irregularity yet observed in a pulsar is the first confirmation that pulsars in binary systems exhibit the strange phenomenon known as a 'glitch.'
A study that will ‘test our understanding of how the Universe works, particularly outside the relatively narrow confines of our planet’ is being undertaken by an international team of researchers.
The origin of cosmic rays, high-energy particles from outer space constantly impacting on Earth, is among the most challenging open questions in astrophysics. Now research sheds new light on the origin of those energetic particles.
By following up on mysterious high-energy sources mapped by NASA's Fermi Gamma-ray Space Telescope, a Netherlands-based radio telescope has discovered a new pulsar, the second fastest-spinning known.
New research revealed that the entire zoo of electromagnetic radiation streaming from the Crab nebula -- one of the most iconic objects in the sky -- has its origin in one population of electrons and must be produced in a different way than scientists have traditionally thought. The results have implications for our understanding of how cosmic rays attain their incredible energies.
'Primordial black holes,' believed to have formed shortly after the Big Bang, might explain how heavy elements such as gold, platinum and uranium came to be, physicists report.
Observations by Japan's Venus climate orbiter Akatsuki have revealed an equatorial jet in the lower to middle cloud layer of the planet's atmosphere, a finding that could be pivotal to unraveling a phenomenon called superrotation.
Astronomers have been trying to determine whether there might be water on the seven Earth-sized planets orbiting the nearby dwarf star TRAPPIST-1. The results suggest that the outer planets of the system might still harbor substantial amounts of water. This includes the three planets within the habitable zone of the star, lending further weight to the possibility that they may indeed be habitable.
Researchers have for the first time shown that neural networks -- a form of artificial intelligence -- can accurately analyze the complex distortions in spacetime known as gravitational lenses 10 million times faster than traditional methods.
What lit up the universe? Black holes may have punctured darkened galaxies, allowing light to escape
Researchers have a new explanation for how the universe changed from darkness to light. They propose that black holes within galaxies produce winds strong enough to fling out matter that punctures holes in galaxies, allowing light to escape.
LRO captured an image of the Moon's shadow over a large region of the United States, centered just north of Nashville, Tennessee.
Models of black holes that rely upon an assumption made 20 years ago need revision, explain investigators.
A chance combination of a gravitational lens and polarized waves coming from a distant quasar gave astronomers the tool needed to make a measurement important to understanding the origin of magnetic fields in galaxies.
The Seven Sisters, as they were known to the ancient Greeks, are now known to modern astronomers as the Pleiades star cluster – a set of stars which are visible to the naked eye and have been studied for thousands of years by cultures all over the world. Now astronomers have demonstrated a powerful new technique for observing stars such as these, which are ordinarily far too bright to look at with high performance telescopes.
Telescopes with sensitive, high-speed, visible-light and infrared cameras flew aboard NASA WB-57F research aircraft to gather data during the total solar eclipse.
NASA's James Webb Space Telescope will use its infrared capabilities to study the "ocean worlds" of Jupiter's moon Europa and Saturn's moon Enceladus, adding to observations previously made by NASA's Galileo and Cassini orbiters. The Webb telescope's observations could also help guide future missions to the icy moons.
Astronomers have observed the elusive 'Phoenicid meteor shower' and have determined that it was spawned by the now vanished Comet Blanpain. They also found that Comet Blanpain was active, though only weakly, in the early 20th Century. This is the first time that researchers could determine the activity of a comet by observing its associated meteor shower. These results are important for understanding the evolution of minor bodies in the Solar System.
Physicists have described how observations of gravitational waves limit the possible explanations for the formation of black holes outside of our galaxy; either they are spinning more slowly than black holes in our own galaxy or they spin rapidly but are 'tumbled around' with spins randomly oriented to their orbit.
Scientists appear to have found the first X-rays coming from type Ia supernovae.